viewfeed.js

   1 var active_post_id = false;
   2 var last_article_view = false;
   3 var active_real_feed_id = false;
   4
   5 // FIXME: kludges, needs proper implementation
   6 var _reload_feedlist_after_view = false;
   7
   8 var _cdm_wd_timeout = false;
   9 var _cdm_wd_vishist = new Array();
  10
  11 var article_cache = new Array();
  12
  13 var vgroup_last_feed = false;
  14 var post_under_pointer = false;
  15
  16 var last_requested_article = false;
  17
  18 var preload_id_batch = [];
  19 var preload_timeout_id = false;
  20
  21 var cache_added = [];
  22
  23 function catchup_callback2(transport, callback) {
  24         try {
  25                 console.log("catchup_callback2 " + transport + ", " + callback);
  26                 notify("");
  27                 handle_rpc_reply(transport);
  28                 if (callback) {
  29                         setTimeout(callback, 10);
  30                 }
  31         } catch (e) {
  32                 exception_error("catchup_callback2", e, transport);
  33         }
  34 }
  35
  36 function clean_feed_selections() {
  37         try {
  38                 var feeds = $("feedList").getElementsByTagName("LI");
  39
  40                 for (var i = 0; i < feeds.length; i++) {
  41                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  42                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  43                         }
  44                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  45                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  46                         }
  47                 }
  48         } catch (e) {
  49                 exception_error("clean_feed_selections", e);
  50         }
  51 }
  52
  53 function headlines_callback2(transport, feed_cur_page) {
  54         try {
  55
  56                 if (!handle_rpc_reply(transport)) return;
  57
  58                 loading_set_progress(100);
  59
  60                 console.log("headlines_callback2 [page=" + feed_cur_page + "]");
  61
  62                 if (!transport_error_check(transport)) return;
  63
  64                 clean_feed_selections();
  65
  66                 var is_cat = false;
  67                 var feed_id = false;
  68
  69                 if (transport.responseXML) {
  70                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  71                         if (headlines) {
  72                                 is_cat = headlines.getAttribute("is_cat");
  73                                 feed_id = headlines.getAttribute("id");
  74                                 setActiveFeedId(feed_id, is_cat);
  75                         }
  76                 }
  77
  78                 var ll = $('FLL-' + feed_id);
  79
  80                 if (!is_cat) {
  81                         var feedr = $("FEEDR-" + feed_id);
  82                         if (feedr && !feedr.className.match("Selected")) {
  83                                 feedr.className = feedr.className + "Selected";
  84                         }
  85                         if (feedr && ll) feedr.removeChild(ll);
  86                 } else {
  87                         var feedr = $("FCAT-" + feed_id);
  88                         if (feedr && !feedr.className.match("Selected")) {
  89                                 feedr.className = feedr.className + "Selected";
  90                         }
  91
  92                         var fcap = $("FCAP-" + feed_id);
  93                         if (fcap && ll) fcap.removeChild(ll);
  94
  95                 }
  96
  97                 var img = $('FIMG-' + feed_id);
  98
  99                 if (img && !is_cat) {
 100                         img.src = img.alt;
 101                 }
 102
 103                 var f = $("headlines-frame");
 104                 try {
 105                         if (feed_cur_page == 0) {
 106                                 //console.log("resetting headlines scrollTop");
 107                                 f.scrollTop = 0;
 108                         }
 109                 } catch (e) { };
 110
 111                 if (transport.responseXML) {
 112                         var response = transport.responseXML;
 113
 114                         var headlines = response.getElementsByTagName("headlines")[0];
 115                         var headlines_info = response.getElementsByTagName("headlines-info")[0];
 116
 117                         if (headlines_info)
 118                                 headlines_info = JSON.parse(headlines_info.firstChild.nodeValue);
 119                         else {
 120                                 console.error("didn't find headlines-info object in response");
 121                                 return;
 122                         }
 123
 124                         var headlines_count = headlines_info.count;
 125                         var headlines_unread = headlines_info.unread;
 126                         var disable_cache = headlines_info.disable_cache;
 127
 128                         vgroup_last_feed = headlines_info.vgroup_last_feed;
 129
 130                         if (headlines_count == 0) {
 131                                 _infscroll_disable = 1;
 132                         } else {
 133                                 _infscroll_disable = 0;
 134                         }
 135
 136                         var counters = response.getElementsByTagName("counters")[0];
 137                         var articles = response.getElementsByTagName("article");
 138                         var runtime_info = response.getElementsByTagName("runtime-info");
 139
 140                         if (feed_cur_page == 0) {
 141                                 if (headlines) {
 142                                         f.innerHTML = headlines.firstChild.nodeValue;
 143
 144                                         var cache_prefix = "";
 145
 146                                         if (is_cat) {
 147                                                 cache_prefix = "C:";
 148                                         } else {
 149                                                 cache_prefix = "F:";
 150                                         }
 151
 152                                         cache_invalidate(cache_prefix + feed_id);
 153
 154                                         if (!disable_cache) {
 155                                                 cache_inject(cache_prefix + feed_id,
 156                                                         headlines.firstChild.nodeValue, headlines_unread);
 157                                         }
 158
 159                                 } else {
 160                                         console.warn("headlines_callback: returned no data");
 161                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 162
 163                                 }
 164                         } else {
 165                                 if (headlines) {
 166                                         if (headlines_count > 0) {
 167                                                 console.warn("adding some more headlines...");
 168
 169                                                 var c = $("headlinesList");
 170
 171                                                 if (!c) {
 172                                                         c = $("headlinesInnerContainer");
 173                                                 }
 174
 175                                                 var ids = getSelectedArticleIds2();
 176
 177                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 178
 179                                                 console.log("restore selected ids: " + ids);
 180
 181                                                 for (var i = 0; i < ids.length; i++) {
 182                                                         markHeadline(ids[i]);
 183                                                 }
 184
 185                                         } else {
 186                                                 console.log("no new headlines received");
 187                                         }
 188                                 } else {
 189                                         console.warn("headlines_callback: returned no data");
 190                                         notify_error("Error while trying to load more headlines");
 191                                 }
 192
 193                         }
 194
 195                         if (articles) {
 196                                 for (var i = 0; i < articles.length; i++) {
 197                                         var a_id = articles[i].getAttribute("id");
 198                                         //console.log("found id: " + a_id);
 199                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 200                                 }
 201                         } else {
 202                                 console.log("no cached articles received");
 203                         }
 204
 205                         request_counters();
 206
 207                         if (runtime_info) {
 208                                 parse_runtime_info(runtime_info[0]);
 209                         }
 210
 211                 } else {
 212                         console.warn("headlines_callback: returned no XML object");
 213                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 214                 }
 215
 216
 217                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 218
 219                 if (!$("headlinesList") &&
 220                                 getActiveFeedId() != -3 &&
 221                                 getInitParam("cdm_auto_catchup") == 1) {
 222                         console.log("starting CDM watchdog");
 223                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 224                         _cdm_wd_vishist = new Array();
 225                 } else {
 226                         console.log("not in CDM mode or watchdog disabled");
 227                 }
 228
 229                 _feed_cur_page = feed_cur_page;
 230                 _infscroll_request_sent = 0;
 231
 232                 notify("");
 233
 234                 remove_splash();
 235
 236         } catch (e) {
 237                 exception_error("headlines_callback2", e, transport);
 238         }
 239 }
 240
 241 function render_article(article) {
 242         try {
 243                 var f = $("content-frame");
 244                 try {
 245                         f.scrollTop = 0;
 246                 } catch (e) { };
 247
 248                 var fi = $("content-insert");
 249
 250                 try {
 251                         fi.scrollTop = 0;
 252                 } catch (e) { };
 253
 254                 fi.innerHTML = article;
 255
 256 //              article.evalScripts();
 257
 258         } catch (e) {
 259                 exception_error("render_article", e);
 260         }
 261 }
 262
 263 function showArticleInHeadlines(id) {
 264
 265         try {
 266
 267                 cleanSelected("headlinesList");
 268
 269                 var crow = $("RROW-" + id);
 270
 271                 if (!crow) return;
 272
 273                 var article_is_unread = crow.className.match("Unread");
 274
 275                 crow.className = crow.className.replace("Unread", "");
 276
 277                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 278
 279                 var upd_img_pic = $("FUPDPIC-" + id);
 280
 281                 var cache_prefix = "";
 282
 283                 if (activeFeedIsCat()) {
 284                         cache_prefix = "C:";
 285                 } else {
 286                         cache_prefix = "F:";
 287                 }
 288
 289                 var view_mode = false;
 290
 291                 try {
 292                         view_mode = document.forms['main_toolbar_form'].view_mode;
 293                         view_mode = view_mode[view_mode.selectedIndex].value;
 294                 } catch (e) {
 295                         //
 296                 }
 297
 298                 if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
 299                                         upd_img_pic.src.match("fresh_sign.png"))) {
 300
 301                         upd_img_pic.src = "images/blank_icon.gif";
 302
 303                         cache_invalidate(cache_prefix + getActiveFeedId());
 304
 305                         cache_inject(cache_prefix + getActiveFeedId(),
 306                                 $("headlines-frame").innerHTML,
 307                                 get_feed_unread(getActiveFeedId()));
 308
 309                 } else if (article_is_unread && view_mode == "all_articles") {
 310
 311                         cache_invalidate(cache_prefix + getActiveFeedId());
 312
 313                         cache_inject(cache_prefix + getActiveFeedId(),
 314                                 $("headlines-frame").innerHTML,
 315                                 get_feed_unread(getActiveFeedId())-1);
 316
 317                 } else if (article_is_unread) {
 318                         cache_invalidate(cache_prefix + getActiveFeedId());
 319                 }
 320
 321                 markHeadline(id);
 322
 323         } catch (e) {
 324                 exception_error("showArticleInHeadlines", e);
 325         }
 326 }
 327
 328 function article_callback2(transport, id) {
 329         try {
 330                 console.log("article_callback2 " + id);
 331
 332                 if (!handle_rpc_reply(transport)) return;
 333
 334                 if (transport.responseXML) {
 335
 336                         if (!transport_error_check(transport)) return;
 337
 338 /*                      var ll = $('LL-' + id);
 339                         var content = $('HLC-' + id);
 340
 341                         if (ll && content) content.removeChild(ll); */
 342
 343                         var upic = $('FUPDPIC-' + id);
 344
 345                         if (upic) {
 346                                 upic.src = 'images/blank_icon.gif';
 347                         }
 348
 349                         if (id != last_requested_article) {
 350                                 console.log("requested article id is out of sequence, aborting");
 351                                 return;
 352                         }
 353
 354                         active_post_id = id;
 355
 356                         //console.log("looking for articles to cache...");
 357
 358                         var articles = transport.responseXML.getElementsByTagName("article");
 359
 360                         for (var i = 0; i < articles.length; i++) {
 361                                 var a_id = articles[i].getAttribute("id");
 362
 363                                 //console.log("found id: " + a_id);
 364
 365                                 if (a_id == active_post_id) {
 366                                         //console.log("active article, rendering...");
 367                                         render_article(articles[i].firstChild.nodeValue);
 368                                 }
 369
 370                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 371                         }
 372
 373
 374                         showArticleInHeadlines(id);
 375
 376                         if (db) {
 377                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 378                         }
 379
 380                         var reply = transport.responseXML.firstChild.firstChild;
 381
 382                 } else {
 383                         console.warn("article_callback: returned no XML object");
 384                         //var f = $("content-frame");
 385                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 386                 }
 387
 388                 var date = new Date();
 389                 last_article_view = date.getTime() / 1000;
 390
 391                 if (_reload_feedlist_after_view) {
 392                         setTimeout('updateFeedList(false, false)', 50);
 393                         _reload_feedlist_after_view = false;
 394                 } else {
 395                         request_counters();
 396                 }
 397
 398                 notify("");
 399         } catch (e) {
 400                 exception_error("article_callback2", e, transport);
 401         }
 402 }
 403
 404 function view(id) {
 405         try {
 406                 console.log("loading article: " + id);
 407
 408                 if (offline_mode) return view_offline(id);
 409
 410                 var cached_article = cache_find(id);
 411
 412                 console.log("cache check result: " + (cached_article != false));
 413
 414                 enableHotkeys();
 415                 hideAuxDlg();
 416
 417                 var query = "?op=view&id=" + param_escape(id);
 418
 419                 var neighbor_ids = getRelativePostIds(active_post_id);
 420
 421                 /* only request uncached articles */
 422
 423                 var cids_to_request = Array();
 424
 425                 for (var i = 0; i < neighbor_ids.length; i++) {
 426                         if (!cache_check(neighbor_ids[i])) {
 427                                 cids_to_request.push(neighbor_ids[i]);
 428                         }
 429                 }
 430
 431                 console.log("additional ids: " + cids_to_request.toString());
 432
 433                 /* additional info for piggyback counters */
 434
 435                 if (tagsAreDisplayed()) {
 436                         query = query + "&omode=lt";
 437                 } else {
 438                         query = query + "&omode=flc";
 439                 }
 440
 441                 query = query + "&cids=" + cids_to_request.toString();
 442
 443                 var crow = $("RROW-" + id);
 444                 var article_is_unread = crow.className.match("Unread");
 445
 446                 showArticleInHeadlines(id);
 447
 448                 if (!cached_article) {
 449
 450                         var upic = $('FUPDPIC-' + id);
 451
 452                         if (upic) {
 453                                 upic.src = getInitParam("sign_progress");
 454                         }
 455
 456                 } else if (cached_article && article_is_unread) {
 457
 458                         query = query + "&mode=prefetch";
 459
 460                         render_article(cached_article);
 461
 462                 } else if (cached_article) {
 463
 464                         query = query + "&mode=prefetch_old";
 465                         render_article(cached_article);
 466
 467                 }
 468
 469                 cache_expire();
 470
 471                 last_requested_article = id;
 472
 473                 new Ajax.Request("backend.php", {
 474                         parameters: query,
 475                         onComplete: function(transport) {
 476                                 article_callback2(transport, id);
 477                         } });
 478
 479                 return false;
 480
 481         } catch (e) {
 482                 exception_error("view", e);
 483         }
 484 }
 485
 486 function tMark(id) {
 487         return toggleMark(id);
 488 }
 489
 490 function tPub(id) {
 491         return togglePub(id);
 492 }
 493
 494 function tMark_afh_off(effect) {
 495         try {
 496                 var elem = effect.effects[0].element;
 497
 498                 //console.log("tMark_afh_off : " + elem.id);
 499
 500                 if (elem) {
 501                         elem.src = elem.src.replace("mark_set", "mark_unset");
 502                         elem.alt = __("Star article");
 503                         Element.show(elem);
 504                 }
 505
 506         } catch (e) {
 507                 exception_error("tMark_afh_off", e);
 508         }
 509 }
 510
 511 function tPub_afh_off(effect) {
 512         try {
 513                 var elem = effect.effects[0].element;
 514
 515                 //console.log("tPub_afh_off : " + elem.id);
 516
 517                 if (elem) {
 518                         elem.src = elem.src.replace("pub_set", "pub_unset");
 519                         elem.alt = __("Publish article");
 520                         Element.show(elem);
 521                 }
 522
 523         } catch (e) {
 524                 exception_error("tPub_afh_off", e);
 525         }
 526 }
 527
 528 function toggleMark(id, client_only, no_effects) {
 529
 530         try {
 531
 532                 var query = "?op=rpc&id=" + id + "&subop=mark";
 533
 534                 query = query + "&afid=" + getActiveFeedId();
 535
 536                 if (tagsAreDisplayed()) {
 537                         query = query + "&omode=tl";
 538                 } else {
 539                         query = query + "&omode=flc";
 540                 }
 541
 542                 var mark_img = $("FMPIC-" + id);
 543
 544                 if (!mark_img) return;
 545
 546                 var vfeedu = $("FEEDU--1");
 547                 var crow = $("RROW-" + id);
 548
 549                 if (mark_img.src.match("mark_unset")) {
 550                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 551                         mark_img.alt = __("Unstar article");
 552                         query = query + "&mark=1";
 553
 554                         if (db) {
 555                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 556                         }
 557
 558                 } else {
 559                         mark_img.alt = __("Please wait...");
 560                         query = query + "&mark=0";
 561
 562                         if ($("headlinesList") && !no_effects) {
 563                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 564                         } else {
 565                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 566                                 mark_img.alt = __("Star article");
 567                         }
 568
 569                         if (db) {
 570                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 571                         }
 572
 573                 }
 574
 575                 if (!no_effects) update_local_feedlist_counters();
 576
 577                 if (!client_only) {
 578                         //console.log(query);
 579
 580                         new Ajax.Request("backend.php", {
 581                                 parameters: query,
 582                                 onComplete: function(transport) {
 583                                         handle_rpc_reply(transport);
 584                                 } });
 585
 586                 }
 587
 588         } catch (e) {
 589                 exception_error("toggleMark", e);
 590         }
 591 }
 592
 593 function togglePub(id, client_only, no_effects, note) {
 594
 595         try {
 596
 597                 var query = "?op=rpc&id=" + id + "&subop=publ";
 598
 599                 query = query + "&afid=" + getActiveFeedId();
 600
 601                 if (note != undefined) {
 602                         query = query + "&note=" + param_escape(note);
 603                 } else {
 604                         query = query + "&note=undefined";
 605                 }
 606
 607                 if (tagsAreDisplayed()) {
 608                         query = query + "&omode=tl";
 609                 } else {
 610                         query = query + "&omode=flc";
 611                 }
 612
 613                 var mark_img = $("FPPIC-" + id);
 614
 615                 if (!mark_img) return;
 616
 617                 var vfeedu = $("FEEDU--2");
 618                 var crow = $("RROW-" + id);
 619
 620                 if (mark_img.src.match("pub_unset") || note != undefined) {
 621                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 622                         mark_img.alt = __("Unpublish article");
 623                         query = query + "&pub=1";
 624
 625                 } else {
 626                         mark_img.alt = __("Please wait...");
 627                         query = query + "&pub=0";
 628
 629                         if ($("headlinesList") && !no_effects) {
 630                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 631                         } else {
 632                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 633                                 mark_img.alt = __("Publish article");
 634                         }
 635                 }
 636
 637                 if (!client_only) {
 638                         new Ajax.Request("backend.php", {
 639                                 parameters: query,
 640                                 onComplete: function(transport) {
 641                                         handle_rpc_reply(transport);
 642
 643                                         var note = transport.responseXML.getElementsByTagName("note")[0];
 644
 645                                         if (note) {
 646                                                 var note_id = note.getAttribute("id");
 647                                                 var note_size = note.getAttribute("size");
 648                                                 var note_content = note.firstChild.nodeValue;
 649
 650                                                 var container = $('POSTNOTE-' + note_id);
 651
 652                                                 cache_invalidate(note_id);
 653
 654                                                 if (container) {
 655                                                         if (note_size == "0") {
 656                                                                 Element.hide(container);
 657                                                         } else {
 658                                                                 container.innerHTML = note_content;
 659                                                                 Element.show(container);
 660                                                         }
 661                                                 }
 662                                         }
 663
 664                                 } });
 665                 }
 666
 667         } catch (e) {
 668                 exception_error("togglePub", e);
 669         }
 670 }
 671
 672 function correctHeadlinesOffset(id) {
 673
 674         try {
 675
 676                 var hlist = $("headlinesList");
 677                 var container = $("headlinesInnerContainer");
 678                 var row = $("RROW-" + id);
 679
 680                 var viewport = container.offsetHeight;
 681
 682                 var rel_offset_top = row.offsetTop - container.scrollTop;
 683                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 684
 685                 console.log("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 686                 console.log("Vport: " + viewport);
 687
 688                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 689                         container.scrollTop = row.offsetTop;
 690                 } else if (rel_offset_bottom > viewport) {
 691
 692                         /* doesn't properly work with Opera in some cases because
 693                                 Opera fucks up element scrolling */
 694
 695                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 696                 }
 697
 698         } catch (e) {
 699                 exception_error("correctHeadlinesOffset", e);
 700         }
 701
 702 }
 703
 704 function moveToPost(mode) {
 705
 706         try {
 707
 708                 var rows;
 709
 710                 if (isCdmMode()) {
 711                         rows = cdmGetVisibleArticles();
 712                 } else {
 713                         rows = getVisibleHeadlineIds();
 714                 }
 715
 716                 var prev_id = false;
 717                 var next_id = false;
 718
 719                 if (!$('RROW-' + active_post_id)) {
 720                         active_post_id = false;
 721                 }
 722
 723                 if (active_post_id == false) {
 724                         next_id = getFirstVisibleHeadlineId();
 725                         prev_id = getLastVisibleHeadlineId();
 726                 } else {
 727                         for (var i = 0; i < rows.length; i++) {
 728                                 if (rows[i] == active_post_id) {
 729                                         prev_id = rows[i-1];
 730                                         next_id = rows[i+1];
 731                                 }
 732                         }
 733                 }
 734
 735                 if (mode == "next") {
 736                         if (next_id) {
 737                                 if (isCdmMode()) {
 738
 739                                         cdmExpandArticle(next_id);
 740                                         cdmScrollToArticleId(next_id);
 741
 742                                 } else {
 743                                         correctHeadlinesOffset(next_id);
 744                                         view(next_id, getActiveFeedId());
 745                                 }
 746                         }
 747                 }
 748
 749                 if (mode == "prev") {
 750                         if (prev_id) {
 751                                 if (isCdmMode()) {
 752                                         cdmExpandArticle(prev_id);
 753                                         cdmScrollToArticleId(prev_id);
 754                                 } else {
 755                                         correctHeadlinesOffset(prev_id);
 756                                         view(prev_id, getActiveFeedId());
 757                                 }
 758                         }
 759                 }
 760
 761         } catch (e) {
 762                 exception_error("moveToPost", e);
 763         }
 764 }
 765
 766 function toggleSelected(id) {
 767         try {
 768
 769                 var cb = $("RCHK-" + id);
 770
 771                 var row = $("RROW-" + id);
 772                 if (row) {
 773                         var nc = row.className;
 774
 775                         if (!nc.match("Selected")) {
 776                                 nc = nc + "Selected";
 777                                 if (cb) {
 778                                         cb.checked = true;
 779                                 }
 780
 781                                 // In CDM basically last selected article == active article
 782                                 if (isCdmMode()) active_post_id = id;
 783                         } else {
 784                                 nc = nc.replace("Selected", "");
 785                                 if (cb) {
 786                                         cb.checked = false;
 787                                 }
 788
 789                         }
 790
 791                         row.className = nc;
 792                 }
 793         } catch (e) {
 794                 exception_error("toggleSelected", e);
 795         }
 796 }
 797
 798 function toggleUnread_afh(effect) {
 799         try {
 800
 801                 var elem = effect.element;
 802                 elem.style.backgroundColor = "";
 803
 804         } catch (e) {
 805                 exception_error("toggleUnread_afh", e);
 806         }
 807 }
 808
 809 function toggleUnread(id, cmode, effect) {
 810         try {
 811
 812                 var row = $("RROW-" + id);
 813                 if (row) {
 814                         var nc = row.className;
 815                         var is_selected = row.className.match("Selected");
 816                         nc = nc.replace("Unread", "");
 817                         nc = nc.replace("Selected", "");
 818
 819                         // since we are removing selection from the object, uncheck
 820                         // corresponding checkbox
 821
 822                         var cb = $("RCHK-" + id);
 823                         if (cb) {
 824                                 cb.checked = false;
 825                         }
 826
 827                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 828
 829                         if (cmode == undefined || cmode == 2) {
 830                                 if (row.className.match("Unread")) {
 831                                         row.className = nc;
 832
 833                                         if (effect) {
 834                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 835                                                         afterFinish: toggleUnread_afh,
 836                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 837                                         }
 838
 839                                 } else {
 840                                         row.className = nc + "Unread";
 841                                 }
 842
 843                                 if (db) {
 844                                         db.execute("UPDATE articles SET unread = not unread "+
 845                                                 "WHERE id = ?", [id]);
 846                                 }
 847
 848                         } else if (cmode == 0) {
 849                                 row.className = nc;
 850
 851                                 if (effect) {
 852                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 853                                                 afterFinish: toggleUnread_afh,
 854                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 855                                 }
 856
 857                                 if (db) {
 858                                         db.execute("UPDATE articles SET unread = 0 "+
 859                                                 "WHERE id = ?", [id]);
 860                                 }
 861
 862                         } else if (cmode == 1) {
 863                                 row.className = nc + "Unread";
 864
 865                                 if (db) {
 866                                         db.execute("UPDATE articles SET unread = 1 "+
 867                                                 "WHERE id = ?", [id]);
 868                                 }
 869
 870                         }
 871
 872                         update_local_feedlist_counters();
 873
 874                         // Disable unmarking as selected for the time being (16.05.08) -fox
 875                         if (is_selected) row.className = row.className + "Selected";
 876
 877                         if (cmode == undefined) cmode = 2;
 878
 879                         var query = "?op=rpc&subop=catchupSelected" +
 880                                 "&cmode=" + param_escape(cmode) + "&ids=" + param_escape(id);
 881
 882 //                      notify_progress("Loading, please wait...");
 883
 884                         new Ajax.Request("backend.php", {
 885                                 parameters: query,
 886                                 onComplete: function(transport) {
 887                                         handle_rpc_reply(transport);
 888                                 } });
 889
 890                 }
 891
 892         } catch (e) {
 893                 exception_error("toggleUnread", e);
 894         }
 895 }
 896
 897 function selectionRemoveLabel(id) {
 898         try {
 899
 900                 var ids = getSelectedArticleIds2();
 901
 902                 if (ids.length == 0) {
 903                         alert(__("No articles are selected."));
 904                         return;
 905                 }
 906
 907 //              var ok = confirm(__("Remove selected articles from label?"));
 908
 909 //              if (ok) {
 910
 911                         var query = "?op=rpc&subop=removeFromLabel&ids=" +
 912                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 913
 914                         console.log(query);
 915
 916 //                      notify_progress("Loading, please wait...");
 917
 918                         cache_invalidate("F:" + (-11 - id));
 919
 920                         new Ajax.Request("backend.php", {
 921                                 parameters: query,
 922                                 onComplete: function(transport) {
 923                                         show_labels_in_headlines(transport);
 924                                         handle_rpc_reply(transport);
 925                                 } });
 926
 927 //              }
 928
 929         } catch (e) {
 930                 exception_error("selectionAssignLabel", e);
 931
 932         }
 933 }
 934
 935 function selectionAssignLabel(id) {
 936         try {
 937
 938                 var ids = getSelectedArticleIds2();
 939
 940                 if (ids.length == 0) {
 941                         alert(__("No articles are selected."));
 942                         return;
 943                 }
 944
 945 //              var ok = confirm(__("Assign selected articles to label?"));
 946
 947 //              if (ok) {
 948
 949                         cache_invalidate("F:" + (-11 - id));
 950
 951                         var query = "?op=rpc&subop=assignToLabel&ids=" +
 952                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 953
 954                         console.log(query);
 955
 956 //                      notify_progress("Loading, please wait...");
 957
 958                         new Ajax.Request("backend.php", {
 959                                 parameters: query,
 960                                 onComplete: function(transport) {
 961                                         show_labels_in_headlines(transport);
 962                                         handle_rpc_reply(transport);
 963                                 } });
 964
 965 //              }
 966
 967         } catch (e) {
 968                 exception_error("selectionAssignLabel", e);
 969
 970         }
 971 }
 972
 973 function selectionToggleUnread(set_state, callback_func, no_error) {
 974         try {
 975                 var rows = getSelectedArticleIds2();
 976
 977                 if (rows.length == 0 && !no_error) {
 978                         alert(__("No articles are selected."));
 979                         return;
 980                 }
 981
 982                 for (i = 0; i < rows.length; i++) {
 983                         var row = $("RROW-" + rows[i]);
 984                         if (row) {
 985                                 var nc = row.className;
 986                                 nc = nc.replace("Unread", "");
 987                                 nc = nc.replace("Selected", "");
 988
 989                                 if (set_state == undefined) {
 990                                         if (row.className.match("Unread")) {
 991                                                 row.className = nc + "Selected";
 992                                         } else {
 993                                                 row.className = nc + "UnreadSelected";
 994                                         }
 995                                         if (db) {
 996                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
 997                                                         [rows[i]]);
 998                                         }
 999                                 }
1000
1001                                 if (set_state == false) {
1002                                         row.className = nc + "Selected";
1003                                         if (db) {
1004                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1005                                                         [rows[i]]);
1006                                         }
1007                                 }
1008
1009                                 if (set_state == true) {
1010                                         row.className = nc + "UnreadSelected";
1011                                         if (db) {
1012                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1013                                                         [rows[i]]);
1014                                         }
1015                                 }
1016                         }
1017                 }
1018
1019                 if (rows.length > 0) {
1020
1021                         update_local_feedlist_counters();
1022
1023                         var cmode = "";
1024
1025                         if (set_state == undefined) {
1026                                 cmode = "2";
1027                         } else if (set_state == true) {
1028                                 cmode = "1";
1029                         } else if (set_state == false) {
1030                                 cmode = "0";
1031                         }
1032
1033                         var query = "?op=rpc&subop=catchupSelected" +
1034                                 "&cmode=" + cmode + "&ids=" + param_escape(rows.toString());
1035
1036                         notify_progress("Loading, please wait...");
1037
1038                         new Ajax.Request("backend.php", {
1039                                 parameters: query,
1040                                 onComplete: function(transport) {
1041                                         catchup_callback2(transport, callback_func);
1042                                 } });
1043
1044                 }
1045
1046         } catch (e) {
1047                 exception_error("selectionToggleUnread", e);
1048         }
1049 }
1050
1051 function selectionToggleMarked() {
1052         try {
1053
1054                 var rows = getSelectedArticleIds2();
1055
1056                 if (rows.length == 0) {
1057                         alert(__("No articles are selected."));
1058                         return;
1059                 }
1060
1061                 for (i = 0; i < rows.length; i++) {
1062                         toggleMark(rows[i], true, true);
1063                 }
1064
1065                 update_local_feedlist_counters();
1066
1067                 if (rows.length > 0) {
1068
1069                         var query = "?op=rpc&subop=markSelected&ids=" +
1070                                 param_escape(rows.toString()) + "&cmode=2";
1071
1072                         query = query + "&afid=" + getActiveFeedId();
1073
1074                         query = query + "&omode=lc";
1075
1076                         new Ajax.Request("backend.php", {
1077                                 parameters: query,
1078                                 onComplete: function(transport) {
1079                                         handle_rpc_reply(transport);
1080                                 } });
1081
1082                 }
1083
1084         } catch (e) {
1085                 exception_error("selectionToggleMarked", e);
1086         }
1087 }
1088
1089 function selectionTogglePublished() {
1090         try {
1091
1092                 var rows = getSelectedArticleIds2();
1093
1094                 if (rows.length == 0) {
1095                         alert(__("No articles are selected."));
1096                         return;
1097                 }
1098
1099                 for (i = 0; i < rows.length; i++) {
1100                         togglePub(rows[i], true, true);
1101                 }
1102
1103                 if (rows.length > 0) {
1104
1105                         var query = "?op=rpc&subop=publishSelected&ids=" +
1106                                 param_escape(rows.toString()) + "&cmode=2";
1107
1108                         query = query + "&afid=" + getActiveFeedId();
1109
1110                         query = query + "&omode=lc";
1111
1112                         new Ajax.Request("backend.php", {
1113                                 parameters: query,
1114                                 onComplete: function(transport) {
1115                                         handle_rpc_reply(transport);
1116                                 } });
1117
1118                 }
1119
1120         } catch (e) {
1121                 exception_error("selectionToggleMarked", e);
1122         }
1123 }
1124
1125 function cdmGetSelectedArticles() {
1126         var sel_articles = new Array();
1127         var container = $("headlinesInnerContainer");
1128
1129         for (i = 0; i < container.childNodes.length; i++) {
1130                 var child = container.childNodes[i];
1131
1132                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1133                         var c_id = child.id.replace("RROW-", "");
1134                         sel_articles.push(c_id);
1135                 }
1136         }
1137
1138         return sel_articles;
1139 }
1140
1141 function cdmGetVisibleArticles() {
1142         var sel_articles = new Array();
1143         var container = $("headlinesInnerContainer");
1144
1145         if (!container) return sel_articles;
1146
1147         for (i = 0; i < container.childNodes.length; i++) {
1148                 var child = container.childNodes[i];
1149
1150                 if (child.id && child.id.match("RROW-")) {
1151                         var c_id = child.id.replace("RROW-", "");
1152                         sel_articles.push(c_id);
1153                 }
1154         }
1155
1156         return sel_articles;
1157 }
1158
1159 function cdmGetUnreadArticles() {
1160         var sel_articles = new Array();
1161         var container = $("headlinesInnerContainer");
1162
1163         for (i = 0; i < container.childNodes.length; i++) {
1164                 var child = container.childNodes[i];
1165
1166                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1167                         var c_id = child.id.replace("RROW-", "");
1168                         sel_articles.push(c_id);
1169                 }
1170         }
1171
1172         return sel_articles;
1173 }
1174
1175
1176 // mode = all,none,unread
1177 function cdmSelectArticles(mode) {
1178         var container = $("headlinesInnerContainer");
1179
1180         for (i = 0; i < container.childNodes.length; i++) {
1181                 var child = container.childNodes[i];
1182
1183                 if (child.id && child.id.match("RROW-")) {
1184                         var aid = child.id.replace("RROW-", "");
1185
1186                         var cb = $("RCHK-" + aid);
1187
1188                         if (mode == "all") {
1189                                 if (!child.className.match("Selected")) {
1190                                         child.className = child.className + "Selected";
1191                                         cb.checked = true;
1192                                 }
1193                         } else if (mode == "unread") {
1194                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1195                                         child.className = child.className + "Selected";
1196                                         cb.checked = true;
1197                                 }
1198                         } else {
1199                                 child.className = child.className.replace("Selected", "");
1200                                 cb.checked = false;
1201                         }
1202                 }
1203         }
1204 }
1205
1206 function catchupPage() {
1207
1208         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1209
1210         var str = __("Mark all visible articles in %s as read?");
1211
1212         str = str.replace("%s", fn);
1213
1214         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1215                 return;
1216         }
1217
1218         if ($("headlinesList")) {
1219                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1220                 selectionToggleUnread(false, 'viewCurrentFeed()', true);
1221                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1222         } else {
1223                 cdmSelectArticles('all');
1224                 selectionToggleUnread(false, 'viewCurrentFeed()', true)
1225                 cdmSelectArticles('none');
1226         }
1227 }
1228
1229 function deleteSelection() {
1230
1231         try {
1232
1233                 var rows = getSelectedArticleIds2();
1234
1235                 if (rows.length == 0) {
1236                         alert(__("No articles are selected."));
1237                         return;
1238                 }
1239
1240                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1241                 var str;
1242                 var op;
1243
1244                 if (getActiveFeedId() != 0) {
1245                         str = __("Delete %d selected articles in %s?");
1246                 } else {
1247                         str = __("Delete %d selected articles?");
1248                 }
1249
1250                 str = str.replace("%d", rows.length);
1251                 str = str.replace("%s", fn);
1252
1253                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1254                         return;
1255                 }
1256
1257                 query = "?op=rpc&subop=delete&ids=" + param_escape(rows);
1258
1259                 console.log(query);
1260
1261                 new Ajax.Request("backend.php", {
1262                         parameters: query,
1263                         onComplete: function(transport) {
1264                                         viewCurrentFeed();
1265                                 } });
1266
1267         } catch (e) {
1268                 exception_error("deleteSelection", e);
1269         }
1270 }
1271
1272 function archiveSelection() {
1273
1274         try {
1275
1276                 var rows = getSelectedArticleIds2();
1277
1278                 if (rows.length == 0) {
1279                         alert(__("No articles are selected."));
1280                         return;
1281                 }
1282
1283                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1284                 var str;
1285                 var op;
1286
1287                 if (getActiveFeedId() != 0) {
1288                         str = __("Archive %d selected articles in %s?");
1289                         op = "archive";
1290                 } else {
1291                         str = __("Move %d archived articles back?");
1292                         op = "unarchive";
1293                 }
1294
1295                 str = str.replace("%d", rows.length);
1296                 str = str.replace("%s", fn);
1297
1298                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1299                         return;
1300                 }
1301
1302                 query = "?op=rpc&subop="+op+"&ids=" + param_escape(rows);
1303
1304                 console.log(query);
1305
1306                 for (var i = 0; i < rows.length; i++) {
1307                         cache_invalidate(rows[i]);
1308                 }
1309
1310                 new Ajax.Request("backend.php", {
1311                         parameters: query,
1312                         onComplete: function(transport) {
1313                                         viewCurrentFeed();
1314                                 } });
1315
1316         } catch (e) {
1317                 exception_error("archiveSelection", e);
1318         }
1319 }
1320
1321 function catchupSelection() {
1322
1323         try {
1324
1325                 var rows = getSelectedArticleIds2();
1326
1327                 if (rows.length == 0) {
1328                         alert(__("No articles are selected."));
1329                         return;
1330                 }
1331
1332                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1333
1334                 var str = __("Mark %d selected articles in %s as read?");
1335
1336                 str = str.replace("%d", rows.length);
1337                 str = str.replace("%s", fn);
1338
1339                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1340                         return;
1341                 }
1342
1343                 if ($("headlinesList")) {
1344                         selectionToggleUnread(false, 'viewCurrentFeed()', true);
1345                 } else {
1346                         selectionToggleUnread(false, 'viewCurrentFeed()', true)
1347                 }
1348
1349         } catch (e) {
1350                 exception_error("catchupSelection", e);
1351         }
1352 }
1353
1354 function editArticleTags(id, feed_id, cdm_enabled) {
1355         displayDlg('editArticleTags', id,
1356                            function () {
1357                                         $("tags_str").focus();
1358
1359                                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1360                                            "backend.php?op=rpc&subop=completeTags",
1361                                            { tokens: ',', paramName: "search" });
1362                            });
1363 }
1364
1365 function editTagsSave() {
1366
1367         notify_progress("Saving article tags...");
1368
1369         var form = document.forms["tag_edit_form"];
1370
1371         var query = Form.serialize("tag_edit_form");
1372
1373         query = "?op=rpc&subop=setArticleTags&" + query;
1374
1375         //console.log(query);
1376
1377         new Ajax.Request("backend.php", {
1378                 parameters: query,
1379                 onComplete: function(transport) {
1380                                 try {
1381                                         //console.log("tags saved...");
1382
1383                                         closeInfoBox();
1384                                         notify("");
1385
1386                                         if (tagsAreDisplayed()) {
1387                                                 _reload_feedlist_after_view = true;
1388                                         }
1389
1390                                         if (transport.responseXML) {
1391                                                 var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1392
1393                                                 if (tags_str) {
1394                                                         var id = tags_str.getAttribute("id");
1395
1396                                                         if (id) {
1397                                                                 var tags = $("ATSTR-" + id);
1398                                                                 if (tags) {
1399                                                                         tags.innerHTML = tags_str.firstChild.nodeValue;
1400                                                                 }
1401
1402                                                                 cache_invalidate(id);
1403                                                         }
1404                                                 }
1405                                         }
1406
1407                                 } catch (e) {
1408                                         exception_error("editTagsSave", e);
1409                                 }
1410                         } });
1411 }
1412
1413 function editTagsInsert() {
1414         try {
1415
1416                 var form = document.forms["tag_edit_form"];
1417
1418                 var found_tags = form.found_tags;
1419                 var tags_str = form.tags_str;
1420
1421                 var tag = found_tags[found_tags.selectedIndex].value;
1422
1423                 if (tags_str.value.length > 0 &&
1424                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1425
1426                         tags_str.value = tags_str.value + ", ";
1427                 }
1428
1429                 tags_str.value = tags_str.value + tag + ", ";
1430
1431                 found_tags.selectedIndex = 0;
1432
1433         } catch (e) {
1434                 exception_error("editTagsInsert", e);
1435         }
1436 }
1437
1438 function cdmScrollViewport(where) {
1439         console.log("cdmScrollViewport: " + where);
1440
1441         var ctr = $("headlinesInnerContainer");
1442
1443         if (!ctr) return;
1444
1445         if (where == "bottom") {
1446                 ctr.scrollTop = ctr.scrollHeight;
1447         } else {
1448                 ctr.scrollTop = where;
1449         }
1450 }
1451
1452 function cdmArticleIsBelowViewport(id) {
1453         try {
1454                 var ctr = $("headlinesInnerContainer");
1455                 var e = $("RROW-" + id);
1456
1457                 if (!e || !ctr) return;
1458
1459                 // article starts below viewport
1460
1461                 if (ctr.scrollTop < e.offsetTop) {
1462                         return true;
1463                 } else {
1464                         return false;
1465                 }
1466
1467         } catch (e) {
1468                 exception_error("cdmArticleIsVisible", e);
1469         }
1470 }
1471
1472 function cdmArticleIsAboveViewport(id) {
1473         try {
1474                 var ctr = $("headlinesInnerContainer");
1475                 var e = $("RROW-" + id);
1476
1477                 if (!e || !ctr) return;
1478
1479                 // article starts above viewport
1480
1481                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1482                         return true;
1483                 } else {
1484                         return false;
1485                 }
1486
1487         } catch (e) {
1488                 exception_error("cdmArticleIsVisible", e);
1489         }
1490 }
1491
1492 function cdmScrollToArticleId(id) {
1493         try {
1494                 var ctr = $("headlinesInnerContainer");
1495                 var e = $("RROW-" + id);
1496
1497                 if (!e || !ctr) return;
1498
1499                 ctr.scrollTop = e.offsetTop;
1500
1501         } catch (e) {
1502                 exception_error("cdmScrollToArticleId", e);
1503         }
1504 }
1505
1506 function cdmArticleIsActuallyVisible(id) {
1507         try {
1508                 var ctr = $("headlinesInnerContainer");
1509                 var e = $("RROW-" + id);
1510
1511                 if (!e || !ctr) return;
1512
1513                 // article fits in viewport OR article is longer than viewport and
1514                 // its bottom is visible
1515
1516                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1517                                 ctr.scrollTop + ctr.offsetHeight) {
1518
1519                         return true;
1520
1521                 } else if (e.offsetHeight > ctr.offsetHeight &&
1522                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1523                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1524
1525                         return true;
1526
1527                 }
1528
1529                 return false;
1530
1531         } catch (e) {
1532                 exception_error("cdmArticleIsVisible", e);
1533         }
1534 }
1535
1536 function cdmWatchdog() {
1537
1538         try {
1539
1540                 var ctr = $("headlinesInnerContainer");
1541
1542                 if (!ctr) return;
1543
1544                 var ids = new Array();
1545
1546                 var e = ctr.firstChild;
1547
1548                 while (e) {
1549                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1550                                         e.id.match("RROW-")) {
1551
1552                                 // article fits in viewport OR article is longer than viewport and
1553                                 // its bottom is visible
1554
1555                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1556                                                 ctr.scrollTop + ctr.offsetHeight) {
1557
1558 //                                      console.log(e.id + " is visible " + e.offsetTop + "." +
1559 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1560 //                                              (ctr.scrollTop + ctr.offsetHeight));
1561
1562                                         ids.push(e.id.replace("RROW-", ""));
1563
1564                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1565                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1566                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1567
1568                                         ids.push(e.id.replace("RROW-", ""));
1569
1570                                 }
1571
1572                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1573
1574 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1575                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1576
1577                                         ids.push(e.id.replace("RROW-", ""));
1578
1579                                 } */
1580
1581                         }
1582
1583                         e = e.nextSibling;
1584                 }
1585
1586                 console.log("cdmWatchdog, ids= " + ids.toString());
1587
1588                 if (ids.length > 0) {
1589
1590                         for (var i = 0; i < ids.length; i++) {
1591                                 var e = $("RROW-" + ids[i]);
1592                                 if (e) {
1593                                         e.className = e.className.replace("Unread", "");
1594                                 }
1595                         }
1596
1597                         var query = "?op=rpc&subop=catchupSelected" +
1598                                 "&cmode=0" + "&ids=" + param_escape(ids.toString());
1599
1600                         new Ajax.Request("backend.php", {
1601                                 parameters: query,
1602                                 onComplete: function(transport) {
1603                                         handle_rpc_reply(transport);
1604                                 } });
1605
1606                 }
1607
1608                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1609
1610         } catch (e) {
1611                 exception_error("cdmWatchdog", e);
1612         }
1613
1614 }
1615
1616
1617 function cache_inject(id, article, param) {
1618
1619         try {
1620                 if (!cache_check_param(id, param)) {
1621                         //console.log("cache_article: miss: " + id + " [p=" + param + "]");
1622
1623                    var date = new Date();
1624               var ts = Math.round(date.getTime() / 1000);
1625
1626                         if (db) {
1627
1628                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1629                                         [id, article, param, ts]);
1630                         } else {
1631
1632                                 var cache_obj = {};
1633
1634                                 cache_obj["id"] = id;
1635                                 cache_obj["data"] = article;
1636                                 cache_obj["param"] = param;
1637
1638                                 if (param) id = id + ":" + param;
1639
1640                                 cache_added["TS:" + id] = ts;
1641
1642                                 if (has_local_storage())
1643                                         localStorage.setItem(id, JSON.stringify(cache_obj));
1644                                 else
1645                                         article_cache.push(cache_obj);
1646                         }
1647
1648                 } else {
1649                         //console.log("cache_article: hit: " + id + " [p=" + param + "]");
1650                 }
1651         } catch (e) {
1652                 exception_error("cache_inject", e);
1653         }
1654 }
1655
1656 function cache_find(id) {
1657
1658         if (db) {
1659                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1660                 var a = false;
1661
1662                 if (rs.isValidRow()) {
1663                         var a = rs.field(0);
1664                 }
1665
1666                 rs.close();
1667
1668                 return a;
1669
1670         } else {
1671
1672                 if (has_local_storage()) {
1673                         var cache_obj = localStorage.getItem(id);
1674
1675                         if (cache_obj) {
1676                                 cache_obj = JSON.parse(cache_obj);
1677
1678                                 if (cache_obj)
1679                                         return cache_obj['data'];
1680                         }
1681
1682                 } else {
1683                         for (var i = 0; i < article_cache.length; i++) {
1684                                 if (article_cache[i]["id"] == id) {
1685                                         return article_cache[i]["data"];
1686                                 }
1687                         }
1688                 }
1689         }
1690         return false;
1691 }
1692
1693 function cache_find_param(id, param) {
1694
1695         if (db) {
1696                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1697                         [id, param]);
1698                 var a = false;
1699
1700                 if (rs.isValidRow()) {
1701                         a = rs.field(0);
1702                 }
1703
1704                 rs.close();
1705
1706                 return a;
1707
1708         } else {
1709
1710                 if (has_local_storage()) {
1711
1712                         if (param) id = id + ":" + param;
1713
1714                         var cache_obj = localStorage.getItem(id);
1715
1716                         if (cache_obj) {
1717                                 cache_obj = JSON.parse(cache_obj);
1718
1719                                 if (cache_obj)
1720                                         return cache_obj['data'];
1721                         }
1722
1723                 } else {
1724                         for (var i = 0; i < article_cache.length; i++) {
1725                                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1726                                         return article_cache[i]["data"];
1727                                 }
1728                         }
1729                 }
1730         }
1731         return false;
1732 }
1733
1734 function cache_check(id) {
1735
1736         if (db) {
1737                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1738                         [id]);
1739                 var a = false;
1740
1741                 if (rs.isValidRow()) {
1742                          a = rs.field(0) != "0";
1743                 }
1744
1745                 rs.close();
1746
1747                 return a;
1748
1749         } else {
1750                 if (has_local_storage()) {
1751                         if (localStorage.getItem(id))
1752                                 return true;
1753                 } else {
1754                         for (var i = 0; i < article_cache.length; i++) {
1755                                 if (article_cache[i]["id"] == id) {
1756                                         return true;
1757                                 }
1758                         }
1759                 }
1760         }
1761         return false;
1762 }
1763
1764 function cache_check_param(id, param) {
1765
1766         if (db) {
1767                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1768                         [id, param]);
1769                 var a = false;
1770
1771                 if (rs.isValidRow()) {
1772                         a = rs.field(0) != "0";
1773                 }
1774
1775                 rs.close();
1776
1777                 return a;
1778
1779         } else {
1780
1781                 if (has_local_storage()) {
1782
1783                         if (param) id = id + ":" + param;
1784
1785                         if (localStorage.getItem(id))
1786                                 return true;
1787
1788                 } else {
1789                         for (var i = 0; i < article_cache.length; i++) {
1790                                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1791                                         return true;
1792                                 }
1793                         }
1794                 }
1795         }
1796         return false;
1797 }
1798
1799 function cache_expire() {
1800         if (db) {
1801                 var date = new Date();
1802                 var ts = Math.round(date.getTime() / 1000);
1803
1804                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1805                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1806                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1807
1808
1809         } else {
1810                 if (has_local_storage()) {
1811
1812                         var date = new Date();
1813                         var timestamp = Math.round(date.getTime() / 1000);
1814
1815                         for (var i = 0; i < localStorage.length; i++) {
1816
1817                                 var id = localStorage.key(i);
1818
1819                                 if (timestamp - cache_added["TS:" + id] > 180) {
1820                                         localStorage.removeItem(id);
1821                                 }
1822                         }
1823
1824                 } else {
1825                         while (article_cache.length > 25) {
1826                                 article_cache.shift();
1827                         }
1828                 }
1829         }
1830 }
1831
1832 function cache_flush() {
1833         if (db) {
1834                 db.execute("DELETE FROM cache");
1835         } else if (has_local_storage()) {
1836                 localStorage.clear();
1837         } else {
1838                 article_cache = new Array();
1839         }
1840 }
1841
1842 function cache_invalidate(id) {
1843         try {
1844
1845                 if (db) {
1846                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1847                         return rs.rowsAffected != 0;
1848                 } else {
1849
1850                         if (has_local_storage()) {
1851
1852                                 var found = false;
1853
1854                                 for (var i = 0; i < localStorage.length; i++) {
1855                                         var key = localStorage.key(i);
1856
1857 //                                      console.warn("cache_invalidate: " + key_id + " cmp " + id);
1858
1859                                         if (key == id || key.indexOf(id + ":") == 0) {
1860                                                 localStorage.removeItem(key);
1861                                                 found = true;
1862                                                 break;
1863                                         }
1864                                 }
1865
1866                                 return found;
1867
1868                         } else {
1869                                 var i = 0
1870
1871                                 while (i < article_cache.length) {
1872                                         if (article_cache[i]["id"] == id) {
1873                                                 //console.log("cache_invalidate: removed id " + id);
1874                                                 article_cache.splice(i, 1);
1875                                                 return true;
1876                                         }
1877                                         i++;
1878                                 }
1879                         }
1880                 }
1881
1882                 //console.log("cache_invalidate: id not found: " + id);
1883                 return false;
1884         } catch (e) {
1885                 exception_error("cache_invalidate", e);
1886         }
1887 }
1888
1889 function getActiveArticleId() {
1890         return active_post_id;
1891 }
1892
1893 function preloadBatchedArticles() {
1894         try {
1895
1896                 var query = "?op=rpc&subop=getArticles&ids=" +
1897                         preload_id_batch.toString();
1898
1899                 new Ajax.Request("backend.php", {
1900                         parameters: query,
1901                         onComplete: function(transport) {
1902
1903                                 preload_id_batch = [];
1904
1905                                 var articles = transport.responseXML.getElementsByTagName("article");
1906
1907                                 for (var i = 0; i < articles.length; i++) {
1908                                         var id = articles[i].getAttribute("id");
1909                                         if (!cache_check(id)) {
1910                                                 cache_inject(id, articles[i].firstChild.nodeValue);
1911                                                 console.log("preloaded article: " + id);
1912                                         }
1913                                 }
1914                 } });
1915
1916         } catch (e) {
1917                 exception_error("preloadBatchedArticles", e);
1918         }
1919 }
1920
1921 function preloadArticleUnderPointer(id) {
1922         try {
1923                 if (getInitParam("bw_limit") == "1") return;
1924
1925                 if (post_under_pointer == id && !cache_check(id)) {
1926
1927                         console.log("trying to preload article " + id);
1928
1929                         var neighbor_ids = getRelativePostIds(id, 1);
1930
1931                         /* only request uncached articles */
1932
1933                         if (preload_id_batch.indexOf(id) == -1) {
1934                                 for (var i = 0; i < neighbor_ids.length; i++) {
1935                                         if (!cache_check(neighbor_ids[i])) {
1936                                                 preload_id_batch.push(neighbor_ids[i]);
1937                                         }
1938                                 }
1939                         }
1940
1941                         if (preload_id_batch.indexOf(id) == -1)
1942                                 preload_id_batch.push(id);
1943
1944                         //console.log("preload ids batch: " + preload_id_batch.toString());
1945
1946                         window.clearTimeout(preload_timeout_id);
1947                         preload_batch_timeout_id = window.setTimeout('preloadBatchedArticles()', 1000);
1948
1949                 }
1950         } catch (e) {
1951                 exception_error("preloadArticleUnderPointer", e);
1952         }
1953 }
1954
1955 function postMouseIn(id) {
1956         try {
1957                 if (post_under_pointer != id) {
1958                         post_under_pointer = id;
1959                         if (!isCdmMode()) {
1960                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1961                         }
1962                 }
1963
1964         } catch (e) {
1965                 exception_error("postMouseIn", e);
1966         }
1967 }
1968
1969 function postMouseOut(id) {
1970         try {
1971                 post_under_pointer = false;
1972         } catch (e) {
1973                 exception_error("postMouseOut", e);
1974         }
1975 }
1976
1977 function headlines_scroll_handler() {
1978         try {
1979
1980                 var e = $("headlinesInnerContainer");
1981
1982                 var toolbar_form = document.forms["main_toolbar_form"];
1983
1984 //              console.log((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1985 //                      _infscroll_disable);
1986
1987                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1988                         if (!_infscroll_disable) {
1989                                 viewNextFeedPage();
1990                         }
1991                 }
1992
1993         } catch (e) {
1994                 exception_error("headlines_scroll_handler", e);
1995         }
1996 }
1997
1998 function catchupRelativeToArticle(below) {
1999
2000         try {
2001
2002
2003                 if (!getActiveArticleId()) {
2004                         alert(__("No article is selected."));
2005                         return;
2006                 }
2007
2008                 var visible_ids;
2009
2010                 if ($("headlinesList")) {
2011                         visible_ids = getVisibleHeadlineIds();
2012                 } else {
2013                         visible_ids = cdmGetVisibleArticles();
2014                 }
2015
2016                 var ids_to_mark = new Array();
2017
2018                 if (!below) {
2019                         for (var i = 0; i < visible_ids.length; i++) {
2020                                 if (visible_ids[i] != getActiveArticleId()) {
2021                                         var e = $("RROW-" + visible_ids[i]);
2022
2023                                         if (e && e.className.match("Unread")) {
2024                                                 ids_to_mark.push(visible_ids[i]);
2025                                         }
2026                                 } else {
2027                                         break;
2028                                 }
2029                         }
2030                 } else {
2031                         for (var i = visible_ids.length-1; i >= 0; i--) {
2032                                 if (visible_ids[i] != getActiveArticleId()) {
2033                                         var e = $("RROW-" + visible_ids[i]);
2034
2035                                         if (e && e.className.match("Unread")) {
2036                                                 ids_to_mark.push(visible_ids[i]);
2037                                         }
2038                                 } else {
2039                                         break;
2040                                 }
2041                         }
2042                 }
2043
2044                 if (ids_to_mark.length == 0) {
2045                         alert(__("No articles found to mark"));
2046                 } else {
2047                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
2048
2049                         if (getInitParam("confirm_feed_catchup") != 1 || confirm(msg)) {
2050
2051                                 for (var i = 0; i < ids_to_mark.length; i++) {
2052                                         var e = $("RROW-" + ids_to_mark[i]);
2053                                         e.className = e.className.replace("Unread", "");
2054                                 }
2055
2056                                 var query = "?op=rpc&subop=catchupSelected" +
2057                                         "&cmode=0" + "&ids=" + param_escape(ids_to_mark.toString());
2058
2059                                 new Ajax.Request("backend.php", {
2060                                         parameters: query,
2061                                         onComplete: function(transport) {
2062                                                 catchup_callback2(transport);
2063                                         } });
2064
2065                         }
2066                 }
2067
2068         } catch (e) {
2069                 exception_error("catchupRelativeToArticle", e);
2070         }
2071 }
2072
2073 function cdmExpandArticle(id) {
2074         try {
2075
2076                 var elem = $("CICD-" + active_post_id);
2077
2078                 if (id == active_post_id && Element.visible(elem))
2079                         return true;
2080
2081                 cdmSelectArticles("none");
2082
2083                 var old_offset = $("RROW-" + id).offsetTop;
2084
2085                 if (active_post_id && elem) {
2086                         Element.hide(elem);
2087                         Element.show("CEXC-" + active_post_id);
2088                 }
2089
2090                 active_post_id = id;
2091
2092                 elem = $("CICD-" + id);
2093
2094                 if (!Element.visible(elem)) {
2095                         Element.show(elem);
2096                         Element.hide("CEXC-" + id);
2097                 }
2098
2099                 var new_offset = $("RROW-" + id).offsetTop;
2100
2101                 $("headlinesInnerContainer").scrollTop += (new_offset-old_offset);
2102
2103                 if ($("RROW-" + id).offsetTop != old_offset)
2104                         $("headlinesInnerContainer").scrollTop = new_offset;
2105
2106                 toggleUnread(id, 0, true);
2107                 toggleSelected(id);
2108
2109         } catch (e) {
2110                 exception_error("cdmExpandArticle", e);
2111         }
2112
2113         return false;
2114 }
2115
2116 function fixHeadlinesOrder(ids) {
2117         try {
2118                 for (var i = 0; i < ids.length; i++) {
2119                         var e = $("RROW-" + ids[i]);
2120
2121                         if (e) {
2122                                 if (i % 2 == 0) {
2123                                         e.className = e.className.replace("even", "odd");
2124                                 } else {
2125                                         e.className = e.className.replace("odd", "even");
2126                                 }
2127                         }
2128                 }
2129         } catch (e) {
2130                 exception_error("fixHeadlinesOrder", e);
2131         }
2132 }
2133
2134 function hideReadHeadlines() {
2135         try {
2136
2137                 var ids = false;
2138                 var vis_ids = new Array();
2139
2140                 if ($("headlinesList")) {
2141                         ids = getVisibleHeadlineIds();
2142                 } else {
2143                         ids = cdmGetVisibleArticles();
2144                 }
2145
2146                 var read_headlines_visible = true;
2147
2148                 for (var i = 0; i < ids.length; i++) {
2149                         var row = $("RROW-" + ids[i]);
2150
2151                         if (row && row.className) {
2152                                 if (read_headlines_visible) {
2153                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2154                                                 Element.show(row);
2155                                                 vis_ids.push(ids[i]);
2156                                         } else {
2157                                                 //Effect.Fade(row, {duration : 0.3});
2158                                                 Element.hide(row);
2159                                         }
2160                                 } else {
2161                                         Element.show(row);
2162                                         vis_ids.push(ids[i]);
2163                                 }
2164                         }
2165                 }
2166
2167                 fixHeadlinesOrder(vis_ids);
2168
2169                 read_headlines_visible = !read_headlines_visible;
2170
2171         } catch (e) {
2172                 exception_error("hideReadHeadlines", e);
2173         }
2174 }
2175
2176 function invertHeadlineSelection() {
2177         try {
2178                 var rows = new Array();
2179                 var r = false;
2180
2181                 if (!isCdmMode()) {
2182                         r = document.getElementsByTagName("TR");
2183                 } else {
2184                         r = document.getElementsByTagName("DIV");
2185                 }
2186
2187                 for (var i = 0; i < r.length; i++) {
2188                         if (r[i].id && r[i].id.match("RROW-")) {
2189                                 rows.push(r[i]);
2190                         }
2191                 }
2192
2193                 for (var i = 0; i < rows.length; i++) {
2194                         var nc = rows[i].className;
2195                         var id = rows[i].id.replace("RROW-", "");
2196                         var cb = $("RCHK-" + id);
2197
2198                         if (!rows[i].className.match("Selected")) {
2199                                 nc = nc + "Selected";
2200                                 cb.checked = true;
2201                         } else {
2202                                 nc = nc.replace("Selected", "");
2203                                 cb.checked = false;
2204                         }
2205
2206                         rows[i].className = nc;
2207
2208                 }
2209
2210         } catch (e) {
2211                 exception_error("invertHeadlineSelection", e);
2212         }
2213 }
2214
2215 function getArticleUnderPointer() {
2216         return post_under_pointer;
2217 }
2218
2219 function zoomToArticle(id) {
2220         try {
2221                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2222                         "ttrss_zoom_" + id,
2223                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2224
2225         } catch (e) {
2226                 exception_error("zoomToArticle", e);
2227         }
2228 }
2229
2230 function scrollArticle(offset) {
2231         try {
2232                 if (!isCdmMode()) {
2233                         var ci = $("content-insert");
2234                         if (ci) {
2235                                 ci.scrollTop += offset;
2236                         }
2237                 } else {
2238                         var hi = $("headlinesInnerContainer");
2239                         if (hi) {
2240                                 hi.scrollTop += offset;
2241                         }
2242
2243                 }
2244         } catch (e) {
2245                 exception_error("scrollArticle", e);
2246         }
2247 }
2248
2249 function show_labels_in_headlines(transport) {
2250         try {
2251                 if (transport.responseXML) {
2252                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2253
2254                         var elems = info.getElementsByTagName("entry");
2255
2256                         for (var l = 0; l < elems.length; l++) {
2257                                 var e_id = elems[l].getAttribute("id");
2258
2259                                 if (e_id) {
2260
2261                                         var ctr = $("HLLCTR-" + e_id);
2262
2263                                         if (ctr) {
2264                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2265                                         }
2266                                 }
2267
2268                         }
2269
2270                 }
2271         } catch (e) {
2272                 exception_error("show_labels_in_headlines", e);
2273
2274         }
2275 }
2276
2277 function toggleHeadlineActions() {
2278         try {
2279                 var e = $("headlineActionsBody");
2280                 var p = $("headlineActionsDrop");
2281
2282                 if (!Element.visible(e)) {
2283                         Element.show(e);
2284                 } else {
2285                         Element.hide(e);
2286                 }
2287
2288                 e.scrollTop = 0;
2289                 e.style.left = (p.offsetLeft + 1) + "px";
2290                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2291
2292         } catch (e) {
2293                 exception_error("toggleHeadlineActions", e);
2294         }
2295 }
2296
2297 function publishWithNote(id, def_note) {
2298         try {
2299                 if (!def_note) def_note = '';
2300
2301                 var note = prompt(__("Please enter a note for this article:"), def_note);
2302
2303                 if (note != undefined) {
2304                         togglePub(id, false, false, note);
2305                 }
2306
2307         } catch (e) {
2308                 exception_error("publishWithNote", e);
2309         }
2310 }
2311
2312 function emailArticle(id) {
2313         try {
2314                 if (!id) {
2315                         var ids = getSelectedArticleIds2();
2316
2317                         if (ids.length == 0) {
2318                                 alert(__("No articles are selected."));
2319                                 return;
2320                         }
2321
2322                         id = ids.toString();
2323                 }
2324
2325                 displayDlg('emailArticle', id,
2326                    function () {
2327                                 document.forms['article_email_form'].destination.focus();
2328
2329                            new Ajax.Autocompleter('destination', 'destination_choices',
2330                                    "backend.php?op=rpc&subop=completeEmails",
2331                                    { tokens: '', paramName: "search" });
2332
2333                         });
2334
2335         } catch (e) {
2336                 exception_error("emailArticle", e);
2337         }
2338 }
2339
2340 function emailArticleDo() {
2341         try {
2342                 var f = document.forms['article_email_form'];
2343
2344                 if (f.destination.value == "") {
2345                         alert("Please fill in the destination email.");
2346                         return;
2347                 }
2348
2349                 if (f.subject.value == "") {
2350                         alert("Please fill in the subject.");
2351                         return;
2352                 }
2353
2354                 var query = Form.serialize("article_email_form");
2355
2356 //              console.log(query);
2357
2358                 new Ajax.Request("backend.php", {
2359                         parameters: query,
2360                         onComplete: function(transport) {
2361                                 try {
2362
2363                                         var error = transport.responseXML.getElementsByTagName('error')[0];
2364
2365                                         if (error) {
2366                                                 alert(__('Error sending email:') + ' ' + error.firstChild.nodeValue);
2367                                         } else {
2368                                                 notify_info('Your message has been sent.');
2369                                                 closeInfoBox();
2370                                         }
2371
2372                                 } catch (e) {
2373                                         exception_error("sendEmailDo", e);
2374                                 }
2375
2376                         } });
2377
2378         } catch (e) {
2379                 exception_error("emailArticleDo", e);
2380         }
2381 }
2382
2383 function cdmDismissArticle(id) {
2384         try {
2385                 var elem = $("RROW-" + id);
2386
2387                 toggleUnread(id, 0, true);
2388
2389                 new Effect.Fade(elem, {duration : 0.5});
2390
2391         } catch (e) {
2392                 exception_error("cdmDismissArticle", e);
2393         }
2394 }
2395
2396 function cdmDismissSelectedArticles() {
2397         try {
2398
2399                 var ids = getSelectedArticleIds2();
2400
2401                 for (var i = 0; i < ids.length; i++) {
2402                         var elem = $("RROW-" + ids[i]);
2403                         new Effect.Fade(elem, {duration : 0.5});
2404                 }
2405
2406                 if (ids.length > 0)
2407                         selectionToggleUnread(false);
2408
2409         } catch (e) {
2410                 exception_error("cdmDismissArticle", e);
2411         }
2412 }